{*******************************************************************************
* The contents of this file are used with permission, subject to the Mozilla   *
* Public License Version 1.1 (the "License"); you may not use this file except *
* in compliance with the License. You may obtain a copy of the License at      *
* http://www.mozilla.org/MPL/                                                  *
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* the specific language governing rights and limitations under the License.    *
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unit MetaDescriptor;

interface

uses Classes, XmlHelper, MetaValues, Descriptor;

const
  FILE_META_DESCRIPTOR = 'MetaDescriptions.xml';

type
  TAHMMetaDescriptor = class(TAHMDescriptor)
  private
    FMetaList: TAHMMetaValueList;
  protected
    procedure ParseXML; override;
  public
    constructor Create; override;
    destructor Destroy; override;
    property MetaList: TAHMMetaValueList read FMetaList;
    procedure LoadDescriptor;
  end;

implementation

uses ApplicationManager, TagNames, XMLTags, ErrorCodes, SysUtils;

constructor TAHMMetaDescriptor.Create;
begin
  inherited Create;

  FFileName := FILE_META_DESCRIPTOR;
  FRootTagName := TAG_META_DESCRIPTIONS;

  FMetaList := TAHMMetaValueList.Create;
end;

destructor TAHMMetaDescriptor.Destroy;
begin
  FMetaList.FreeWithContents;

  inherited Destroy;
end;

procedure TAHMMetaDescriptor.LoadDescriptor;
begin
  // Clear any existing meta definitions before we start
  FMetaList.Clear;

  // Parse XML to populate meta definitions
  ParseXML(ApplicationManagerInstance.ConfigPath);
end;

procedure TAHMMetaDescriptor.ParseXML;
begin
  // Parse meta value descriptions
  FMetaList.ParseFromXML(FHelper);
end;


end.
